Comparison of Conventional Polyethylene Wear and Signs of Cup Failure in Two Similar Total Hip Designs
Figure 3
(a) AP radiograph of THA with machined polyethylene after 8 years of implantation. The measured polywear was of 4 mm. There is focal stem osteolysis and calcar erosion (arrow). (b) AP radiograph of THA with compression-molded polyethylene after 11 years of implantation. The measured polywear was of 2 mm. There were no significant signs of osteolysis.
